TAC TM Butterfly Valve Assemblies

Transcription

1 TAC TM Butterfly Valve Assemblies Technical Data TAC s new butterfly valve line offers a wide range of two- and three-way sizes, along with low pressure pneumatic spring return, electric non-spring return, and spring return actuator models that operate with on/off, floating, or proportional control signals. All assemblies include industry leading butterfly valve features, stainless steel double D shafts, nylon 11 coated ductile iron disc machined to provide bubble tight shut off, minimum torque, and longer seat life. The tongue and groove resilient seat design with molded in O-ring eliminates the use of flange gaskets and allows for ease of maintenance or replacement of the resilient seat. These features provide years of optimum performance and reliability. Applications Typical applications include cooling towers, central system shutoff and bypass piping control, thermal storage, and chiller and boiler control. Features 2 to 18 two-way assemblies and 2 to 16 three-way assemblies Chilled/hot water/glycol applications EPDM resilient seats with tongue and grove design and build in O-ring seal Stainless steel double D stem, requires no pins or screws to connect the disc and stem Extended neck design for temperature isolation and ease of insulation installation Nylon 11 coated ductile iron disc Wide choice of pneumatic and electric actuators and control signals Cast iron lug bodies mate with ANSI class 125/150 flanges Bubble tight shut off Bidirectional flow

2 Part Numbering System Butterfly Valve Numbering System Rubber Lined V x x x 6 x x x x x x x x x x Control Signal Type A = 2-Position B = Body only F = Floating (SPDT, center off K = Pneumatic S = Proprotional (Vdc, madc Disc F = Full 175 psi close to 12" U = Undercut 50 psi close Type 6 = Butterfly Style 2 = 2-Way 3 = 3-Way Actuator Code See Table 1 If actuator code is only three digits, leave the fourth digit blank. Body Style L = Nylon disc and lug body Accessory 4 = Positive positioner S = Auxilary switch Leave the digit blank for no accessories Pattern Main Valve a Main Valve Loss Action 0 = NSR 1 = NO 2 = NC Position 0 = 2-Way 1 = 3-Way b A NC C 2 = 3-Way b B NC C 7 = 3-Way b B NO C 8 = 3-Way b A NO C 9 = Special Flow Pattern a. The letter indicates the main valve and where the actuator is mounted. b. Refer to the flow diagram to the right. c. The view represented is looking down on the stem side of the valve. Linked Valve A B C Port Code 11 = 2 12 = = 3 14 = 4 15 = 5 16 = 6 17 = 8 18 = = = = 18 2

3 Actuator Codes Refer to the part numbering system illustration on the previous page. Table 1: Actuator Codes and Part Numbers a Actuator Code b On/Off or Floating SR Actuator Code b Modulating (2 to 10 Vdc SR MA (VAx MS (VSx 556D 556D 556 MF (VFx 556D Actuator Code b On/Off or Floating SR with Two SPDT Auxiliary Switches Actuator Code b D MA (VAxS 556D D Modulating (0 to 10 Vdc, 4 to 20 ma NSR with Two SPDT Auxiliary Switches MS (VSxS MF (VFxS Actuator Code b On/Off or Floating NSR Actuator Code b Modulating (0 to 10 Vdc, 4 to 20 ma NSR E24 NR (VFx E24 NR (VSx E25 NR (VFx E25 NR (VSx E25D NR (VFx E25D NR (VSx Actuator Code b On/Off or Floating NSR with Two SPDT Auxiliary Switches Actuator Code b E24 NR (VFxS E24 NR (VSxS E25 NR (VFxS E25 NR (VSxS E25D NR (VFxS E25D NR (VSxS Actuator Code On/Off or Floating with One SPDT Auxiliary Switch Actuator Code Modulating (0 to 10 Vdc, 4 to 20 ma NSR with Two SPDT Auxiliary Switches Modulating (0 to 10 Vdc NSR with One SPDT Auxiliary Switch 907 MP (VAxS or VFxS 909 MP /CP (VSxS Actuator Code On/Off NSR with Two SPDT Auxiliary Switches Actuator Code Modulating (0 to 10 Vdc, 4 to 20 ma NSR with Two SPDT Auxiliary Switches E A0536/A (VAxS E A0536/B (VSxS E A0536/A (VAxS E A0536/B (VSxS E A0536/A (VAxS E A0536/B (VSxS E A0536/A (VAxS E A0536/B (VSxS E A0536/A (VAxS E A0536/B (VSxS E A0536/A (VAxS E A0536/B (VSxS Actuator Code b Pneumatic Base Model Actuator Code b Pneumatic Modulating (Positive Positioner SR MK-7121 (VKxx 221D 221D MK (VKx M (VKxx 251D 251D M (VKx4 a. See Table 2 to verify the correct actuator application for the valve selected. b. D = Dual actuators

4 Butterfly Valve Assemblies and Actuators Table 2: Two-Way and Three-Way Valve Assemblies Size Close Off TAC DuraDrive TM SR b Two-Way Butterfly Valve Assemblies a Direct Coupled NSR c High Torque NSR c NEMA 4 with Hand Wheel NSR c 20 PSI Pneu. SR b TAC DuraDrive SR b Three-Way Butterfly Valve Assemblies a Direct Coupled NSR c High Torque NSR c NEMA 4 with Hand Wheel NSR c S S S S S S S S S S S S S S S S D S S S D S S D D S S S D S S D 175 D S S D S D 50 S S S D S S 175 S D S S 50 D S D D S S 175 S S D S S D 50 S S D S S D 175 S S D S S 50 S S D S S 175 S S S S 50 S S S S 175 S S S S 50 S S 150 S S S S a. S = Single actuator, D = Dual actuators, = Assembly combination not available. b. SR = Spring return actuator available as configured for normally open and normally closed two-way butterfly valves. c. NSR = Non spring return actuator. Table 3: Actuator Features Actuator Family Spring Return Available Input Signals Available Options TAC DuraDrive SR MX Direct Coupled NSR NR-22xx High Torque NSR MP NEMA 4 with Hand Wheel NSR 700xxx 20 PSI Pneumatic MK-7121/M566 Yes No No No 24 Vac. Two Position, Floating, 2 to 10 Vdc, Proportional 24 Vac. Three Wire Two Position, Floating, 0 to 10 Vdc, Proportional 120 Vac. Three Wire Two Position, Floating, 0 to 10 Vdc, Proportional 120 Vac. Three Wire Two Position, Floating, 0 to 10 Vdc, 4 to 20 ma, Proportional Auxiliary Switch Auxiliary Switch Auxiliary Switch (standard 20 PSI Pneu. SR b Auxiliary Switch (standard and Heater (standard Yes 8 to 13 psi. Nominal Operating Pressure Range Positive Positioner 4

5 TAC DuraDrive Spring Return Actuators for 2 to 4 Two- and Three-Way Valves TAC DuraDrive Spring Return Mx Actuator Table 4: TAC DuraDrive Spring Return Actuators for 2 to 4 Two- and Three-Way Valves Actuator Code Input Signal Feedback MA On/off MF Floating MS to 10 Vdc 2 to 10 Vdc 556 or 556D 24 Vac MA On/off MF Floating MS to 10 Vdc 2 to 10 Vdc Loss Mode SR Accessories Two SPDT Auxiliary Switches a a. Optional. The first part number field must call out VxxS-6xxx. Actuator Code 556, 556D (Mx Series Technical Data Loss Mode Requirements Spring return. 24 Vac ± 20%, 22 to 30 Vdc. Control Signal On/off, floating, or proportional 2 to 10 Vdc. Environment NEMA 2. Ambient Temperatures 22 to 140 F ( 12 to 60 C. Agency Listings UL, CUL, CE. Manual Operator Provided on single mount units. Option Auxiliary switches 7 Vac. TAC Electric Non-Spring Return Actuators for 6 to 12 Two- and Three-Way Valves TAC Non-Spring Return MP Actuator Table 5: TAC Electric Non-Spring Return High Torque Actuators for 6 to 12 Two- and Three-Way Valves Actuator Code Input Signal Feedback Loss Mode MP On/off, floating 100 W MP / 120 Vac NSR to 10 Vdc CP Accessories SPDT Auxiliary Switch (standard Actuator Code 907, 909 (MP Technical Data Loss Mode Non-spring return. Control Signal On/off, floating (907 only. CP drive, 0 to 10 Vdc adjustable (included with 909 only, optically isolated, 19K W input impedance. Requirements 120 Vac 60 Hz. Environment NEMA 1. Ambient Temperatures 40 to 130 F ( 40 to 50 C. Agency Listings UL. Standard Auxiliary Switch (Included 12A resistive at 120 Vac. 5

6 NR-22xx Non-Spring Return Actuators for 2 to 6 Two- and Three-Way Valves Non-Spring Return NR-22xx-5xx Actuator Table 6: NR-22xx Non-Spring Return Actuators for 2 to 6 Two- and Three-Way Valves Actuator Code Input Signal Feedback NR NR On/off, floating NR E24 NR to 10 Vdc 0 to 10 Vdc NR Vac NR On/off, floating NR E25 or E25D NR to 10 Vdc 0 to 10 Vdc Loss Mode NSR Accessories Two SPDT Auxiliary Switches a Two SPDT Auxiliary Switches a Two SPDT Auxiliary Switches a Two SPDT Auxiliary Switches a a. Optional. The first part number field must call out VxxS-6xxx. Actuator Code E24, E25, E25D (NR-2000 Series Technical Data Loss Mode Non-spring return. Control Signal On/off, floating, or 2 to 10 Vdc, 4 to 20 ma, adjustable. Requirements 20 to 30 Vac, 24 Vdc ± 10%. Environment NEMA 2. Ambient Temperatures 4 to 122 F ( 2 to 50 C. Agency Listings UL, CSA, CE. Optional Auxiliary Switch 2 SPDT 24 Vac 1.5 A inductive, 3 A resistive, 35 VA per switch. Manual Operator Provided on all models. 6

7 S70 Non-Spring Return Actuators for 2 to 18 Two-Way and 2 to 16 Three-Way Valves Non-Spring Return S70-xxxx Actuator Table 7: S70 Non-Spring Return Actuators for 2 to 18 Two-Way and 2 to 16 Three-Way Valves Actuator Code Input Signal Feedback S A0536/ A S A0536/ A S A0536/ A S A0536/ A S A0536/ A S A0536/ A S A0536/ B S A0536/ B S A0536/ B S A0536/ B S A0536/ B S A0536/ B E10 E20 E30 E40 E50 E60 E12 E22 E32 E42 E52 E Vac On/off, floating 0 to 10 Vdc, 4 to 20 ma 0 to 10 Vdc, 4 to 20 ma Loss Mode NSR Accessories Two SPDT Auxiliary Switches and heater (standard Actuator Code E10, E20, E30, E40, E50, E60 E12, E22, E32, E42, E52, E62 (70 Series Technical Data Loss Mode Non-spring return. Control Signal Actuator Code Ex0 On/off, floating 120 Vac 50/60 Hz. Actuator Code Ex2 Factory configured for 4 to 20 ma with a 250 W input impedance, field configrable for 0 to 10 Vdc or 2 to 10 Vdc. Requirements 120 Vac, 50/60 Hz. Environment NEMA 4. Ambient Temperatures 40 to 150 F ( 40 to 60 C. Agency Listings UL, CSA, CE. Standard Auxiliary Switch (Included 10 A resistive at 125/250 Vac, 1/2 A at 125 Vdc. Heater 15 W. Manual Operator Hand wheel provided on all models. 7

8 TAC MK-7121 Pneumatic Spring Return Actuators for 2 to 8 Two-Way and 2 to 4 Three-Way Valves TAC Spring Return MK-7121 Actuator Table 8: TAC MK-7121 Pneumatic Spring Return Actuators for 2 to 8 Two-Way and 2 to 4 Three-Way Valves MK-7121 MK Actuator Code Pressure PSI (kpa Loss Mode 221 or 221D 20 (138 SR Accessories Positive positioner a a. The first part number field must call out VKx4-6xxx. Actuator Code 221 (MK-7121 Series, 221D Technical Data Pressure Loss Mode Spring return. Spring Range 8 to 13. Diaphragm 20 square inch neoprene. Ambient Temperatures 20 to 160 F ( 10 to 70 C. Maximum Pressure 30 PSI (200 kpa. Material Die cast aluminum housing. Option Positive positioner (part number Vx4. TAC M556 Pneumatic Spring Return Actuators for 8 to 10 Two-Way and 5 to 8 Three-Way Valves TAC Spring Return M Actuator Table 9: TAC M556 Pneumatic Spring Return Actuators for 8 to 10 Two-Way and 5 to 8 Three-Way Valves Actuator Code Pressure PSI (kpa Loss Mode Accessories M Positive positioner a 251 or 251D 20 (138 SR M a. The first part number field must call out VKx4-6xxx. Actuator Code 251 (M556 Series, 251D Technical Data Pressure Loss Mode Spring return. Spring Range 8 to 13. Diaphragm 24.8 square inch neoprene. Ambient Temperatures 20 to 180 F ( 10 to 80 C. Maximum Pressure 30 PSI (200 kpa. Material Glass filled nylon housing. Option Positive positioner (part number Vx4. 8

9 Two-Way Valve and SR Actuator Assemblies Table 10: Direct Coupled Spring Return TAC DuraDrive Actuator and Valve Assemblies, Normally Closed a On/Off Floating Modulating VAF L-11 VFF L-11 VSF L-11 Close Off PSI (kpa VAF L-12 VFF L-12 VSF L ( ( Vac VAF D-L-13 VFF D-L-13 VSF D-L ( (125 VAU D-L-14 VFU D-L-14 VSU D-L ( (727 a. For optional two SPDT auxiliary switch models, the letter S must be added to the first part number field. Ex.: VxxS. Table 11: Direct Coupled Spring Return TAC DuraDrive Actuator and Valve Assemblies, Normally Open a On/Off Floating Modulating VAF L-11 VFF L-11 VSF L-11 Close Off PSI (kpa VAF L-12 VFF L-12 VSF L ( ( Vac VAF D-L-13 VFF D-L-13 VSF D-L ( (125 VAU D-L-14 VFU D-L-14 VSU D-L ( (727 a. For optional two SPDT auxiliary switch models, the letter S must be added to the first part number field. Ex.: VxxS. Two-Way Valve and NSR Actuator Assemblies Table 12: Direct Coupled Non-Spring Return Actuator and Valve Assemblies a On/Off or Floating Modulating VFF-6200-E24-L-11 VSF-6200-E24-L-11 Close Off PSI (kpa VFF-6200-E24-L-12 VSF-6200-E24-L ( (1207 VFF-6200-E25-L-13 VSF-6200-E25-L (399 VFF-6200-E25D-L-14 VSF-6200-E25D-L Vac (727 VFU-6200-E25-L-14 VSU-6200-E25-L ( (727 VFU-6200-E25-L-15 VSU-6200-E25-L ( (1190 VFU-6200-E25D-L-16 VSU-6200-E25D-L (1600 a. For optional two SPDT auxiliary switch models, the letter S must be added to the first part number field. Ex.: VxxS. Table 13: High Torque Non-Spring Return Actuator and Valve Assemblies with One SPDT Auxiliary Switch On/Off or Floating VAFS L-16 Modulating VSFS L-16 Close Off PSI (kpa ( (1600 VAFS L-17 VSFS L ( (2868 VAUS L-17 VSUS L ( (2868 VAFS L-18 VSFS L Vac ( (4697 VAUS L-18 VSUS L ( (4697 VAFS L-19 VSFS L ( (6987 VAUS L-19 VSUS L ( (6987 9

10 Table 14: Non-Spring Return Actuator and NEMA 4, Hand Wheel Valve Assemblies with Two SPDT Auxiliary Switches On/Off VAFS-6200-E10-L-11 Modulating VSFS-6200-E12-L-11 Close Off PSI (kpa ( (125 VAFS-6200-E10-L-12 VSFS-6200-E12-L ( (244 VAFS-6200-E10-L-13 VSFS-6200-E12-L ( (399 VAUS-6200-E10-L-14 VSUS-6200-E12-L ( (727 VAFS-6200-E10-L-14 VSFS-6200-E12-L ( (727 VAUS-6200-E10-L-15 VSUS-6200-E12-L ( (1190 VAFS-6200-E20-L-15 VSFS-6200-E22-L ( (1190 VAUS-6200-E20-L-16 VSUS-6200-E22-L ( (1600 VAFS-6200-E20-L-16 VSFS-6200-E22-L ( (1600 VAUS-6200-E20-L-17 VSUS-6200-E22-L Vac 8 50 ( (2868 VAFS-6200-E30-L-17 VSFS-6200-E32-L ( (2868 VAUS-6200-E30-L-18 VSUS-6200-E32-L ( (4697 VAFS-6200-E40-L-18 VSFS-6200-E42-L ( (4697 VAUS-6200-E40-L-19 VSUS-6200-E42-L ( (6987 VAFS-6200-E50-L-19 VSFS-6200-E52-L ( (6987 VAUS-6200-E50-L-20 VSUS-6200-E52-L (345 10,538 (9115 VAFS-6200-E60-L-20 VSFS-6200-E62-L ( ,538 (9115 VAUS-6200-E60-L-21 VSUS-6200-E62-L (345 13,966 (12,081 VAUS-6200-E60-L-22 VSUS-6200-E62-L (345 17,214 (14,890 Two-Way Valve and SR Pneumatic Actuator Assemblies Table 15: Low Pressure Spring Return Actuator and Assemblies, Normally Closed Base Model VKF L-11 Modulating (Positive Positioner VKF L-11 Pressure PSI (kpa (kpa at ( (73 VKF L-12 VKF L ( (141 VKF L-13 VKF L ( (240 VKU L-14 VKU L ( (429 VKF L-14 VKF L ( (429 VKU L-15 VKU L ( ( (670 VKF D-L-15 VKF D-L ( (670 VKF D-L-16 VKF D-L ( (887 VKU D-L-17 VKU D-L ( (1611 VKF D-L-17 VKF D-L ( (1611 VKU D-L-18 VKU D-L ( (

11 Table 16: Low Pressure Spring Return Actuator and Assemblies, Normally Open Base Model VKF L-11 Modulating (Positive Positioner VKF L-11 Pressure PSI (kpa (kpa at ( (73 VKF L-12 VKF L ( (141 VKF L-13 VKF L ( (240 VKU L-14 VKU L ( (429 VKF L-14 VKF L ( (429 VKU L-15 VKU L ( ( (670 VKF D-L-15 VKF D-L ( (670 VKF D-L-16 VKF D-L ( (887 VKU D-L-17 VKU D-L ( (1611 VKF D-L-17 VKF D-L ( (1611 VKU D-L-18 VKU D-L ( (

12 THREE-Way Valve and SR Actuator Assemblies Table 17: Direct Coupled Spring Return TAC DuraDrive Actuator and Valve Assemblies, Normally Closed On/Off Floating Modulating VAF-632x-556-L-11 VFF-632x-556-L-11 VSF-632x-556-L-11 (kpa VAF-632x-556D-L-12 VFF-632x-556D-L-12 VSF-632x-556D-L ( ( Vac VAF-632x-556D-L-13 VFF-632x-556D-L-13 VSF-632x-556D-L ( (125 VAU-632x-556D-L-14 VFU-632x-556D-L-14 VSU-632x-556D-L ( (727 a. For optional two SPDT auxiliary switch models, the letter S must be added to the first part number field. Ex.: VxxS. X indicates three-way flow patterns 1 or 2. See the flow pattern on page 2. Table 18: Direct Coupled Spring Return TAC DuraDrive Actuator and Valve Assemblies, Normally Open a On/Off Floating Modulating VAF-631x-556-L-11 VFF-631x-556-L-11 VSF-631x-556-L-11 (kpa VAF-631x-556D-L-12 VFF-631x-556D-L-12 VSF-631x-556D-L ( ( Vac VAF-631x-556D-L-13 VFF-631x-556D-L-13 VSF-631x-556D-L ( (125 VAU-631x-556D-L-14 VFU-631x-556D-L-14 VSU-631x-556D-L ( (727 a. For optional two SPDT auxiliary switch models, the letter S must be added to the first part number field. Ex.: VxxS. X indicates three-way flow patterns 7 or 8. See the flow pattern on page 2. THREE-Way Valve and NSR Actuator Assemblies Table 19: Direct Coupled Non-Spring Return Actuator and Valve Assemblies a On/Off or Floating Modulating VFF-630x-E24-L-11 VSF-630x-E24-L-11 (kpa VFF-630x-E25-L-12 VSF-630x-E25-L ( (1207 VFF-630x-E25-L-13 VSF-630x-E25-L (399 VFF-630x-E25D-L-14 VSF-630x-E25D-L Vac (727 VFU-630x-E25-L-14 VSU-630x-E25-L ( (727 VFU-630x-E25D-L-15 VSU-630x-E25D-L ( (1190 VFU-630x-E25D-L-16 VSU-630x-E25D-L (1600 a. For optional two SPDT auxiliary switch models, the letter S must be added to the first part number field. Ex.: VxxS. X indicates three-way flow patterns 1 or 2. See the flow pattern on page 2. Table 20: High Torque Non-Spring Return Actuator and Valve Assemblies with One SPDT Auxiliary Switch On/Off or Floating VAFS-630x-907-L-16 Modulating VSFS-630x-909-L-16 (kpa ( (1600 VAFS-630x-907-L-17 VSFS-630x-909-L ( (2868 VAUS-630x-907-L-17 VSUS-630x-909-L ( (2868 VAFS-630x-907-L-18 VSFS-630x-909-L Vac ( (4697 VAUS-630x-907-L-18 VSUS-630x-909-L ( (4697 VAFS-630x-907-L-19 VSFS-630x-909-L ( (6987 VAUS-630x-907-L-19 VSUS-630x-909-L ( (6987 X indicates three-way flow patterns 1 or 2. See the flow pattern on page 2. 12

13 Table 21: Non-Spring Return Actuator and NEMA 4, Hand Wheel, Valve Assemblies with Two SPDT Auxiliary Switches On/Off VAFS-630x-E10-L-11 Modulating VSFS-630x-E12-L-11 (kpa ( (125 VAFS-630x-E10-L-12 VSFS-630x-E12-L ( (244 VAFS-630x-E10-L-13 VSFS-630x-E12-L ( (399 VAUS-630x-E10-L-14 VSUS-630x-E12-L ( (727 VAFS-630x-E20-L-14 VSFS-630x-E22-L ( (727 VAUS-630x-E10-L-15 VSUS-630x-E12-L ( (1190 VAFS-630x-E20-L-15 VSFS-630x-E22-L ( (1190 VAUS-630x-E20-L-16 VSUS-630x-E22-L ( (1600 VAFS-630x-E20-L-16 VSFS-630x-E22-L Vac ( (1600 VAUS-630x-E20-L-17 VSUS-630x-E22-L ( (2868 VAFS-630x-E30-L-17 VSFS-630x-E32-L ( (2868 VAUS-630x-E30-L-18 VSUS-630x-E32-L ( (4697 VAFS-630x-E50-L-18 VSFS-630x-E52-L ( (4697 VAUS-630x-E50-L-19 VSUS-630x-E52-L ( (6987 VAFS-630x-E60-L-19 VSFS-630x-E62-L ( (6987 VAUS-630x-E50-L-20 VSUS-630x-E52-L (345 10,538 (9115 VAUS-630x-E60-L-21 VSUS-630x-E62-L (345 13,966 (12,081 X = 1 or 2. See the flow pattern on page 2. 13

14 THREE-Way Valve and SR Pneumatic Actuator Assemblies Table 22: Low Pressure Spring Return Actuator and Valve Assemblies, Normally Closed Base Model VKF-632x-221-L-11 Modulating (Positive Positioner VKF4-632x-221-L-11 Pressure PSI (kpa (kpa at ( (73 VKF-632x-221-L-12 VKF4-632x-221-L ( (141 VKF-632x-221D-L-13 VKF4-632x-221D-L ( (240 VKF-632x-221D-L-14 VKF4-632x-221D-L ( (429 VKU-632x-251-L-15 VKU4-632x-251-L ( ( (670 VKF-632x-251-L-15 VKF4-632x-251-L ( (670 VKU-632x-251-L-16 VKU4-632x-251-L ( (887 VKF-632x-251D-L-16 VKF4-632x-251D-L ( (887 VKU-632x-251D-L-17 VKU4-632x-251D-L ( (1611 X = 1 or 2. See the flow pattern on page 2. Table 23 Low Pressure Spring Return Actuator and Valve Assemblies, Normally Open Base Model VKF-631x-221-L-11 Modulating (Positive Positioner VKF4-631x-221-L-11 Pressure PSI (kpa (kpa at ( (73 VKF-631x-221-L-12 VKF4-631x-221-L ( (141 VKF-631x-221D-L-13 VKF4-631x-221D-L ( (240 VKF-631x-221D-L-14 VKF4-631x-221D-L ( (429 VKU-631x-251-L-15 VKU4-631x-251-L ( ( (670 VKF-631x-251-L-15 VKF4-631x-251-L ( (670 VKU-631x-251-L-16 VKU4-631x-251-L ( (887 VKF-631x-251D-L-16 VKF4-631x-251D-L ( (887 VKU-631x-251D-L-17 VKU4-631x-251D-L ( (1611 X = 7, or 8. See the flow pattern on page 2. 14

15 Valve Body Technical Data Service Hot and chilled water, up to 60% glycol. See EN-205 Water System Guidelines, F Fluid Temperature limits 40 to 250 F ( 40 to 120 C. Sizes 2 to 18 two-way models. 2 to 16 three-way models. Neck 2 extended neck. Flow Bidirectional. Leakage ANSI Class VI seat leakage (bubble tight. Materials Body Polyester coated cast Iron ASTM A126 Class B lug. Mates with ANSI Class 125/150 flanges. Stem 2 to 8 : 416 stainless steel double D stem. 10 and larger: 316 stainless steel double D stem. Disc Ductile iron nylon 11 coated disc Seat EPDM tongue and groove seat and molded O-ring flange seal. Cv Flows Based on Disc Position Table 24: Values a Factory Set Pneumatic Factory Set Electric Disc Position in Degrees / : , ,761 13, ,065 14,496 17,214 a. Cv x.865 = Kvs Cv is defined as the volume of water in US gallon per minute (GPM that flows through a given restriction or valve opening with a pressure drop of one PSI at room temperature. The best equal percentage flow characteristic is between 20 to 70 degrees of disc opening. Above 70 degrees the flow characteristic is primarily quick opening. Application engineers requiring good equal percentage floating or proportional control should size the valve for the required Cv according to Table 24, and limit the disc rotation to a maximum of 70 degrees in the field. Various methods can be used to limit the disc rotation including in the controller, electrically at the actuator (for proportional actuators only, or mechanically at the actuator. Two position actuators should not be selected for applications requiring equal percentage flow characteristics. 15

16 Two-Way Valve Assembly Actuator Configurations TAC DuraDrive SR and Direct Coupled NSR High Torque NSR NEMA 4 with Hand Wheel NSR 20 PSI Pneumatic SR Three-Way Valve Assembly Actuator configurations TAC DuraDrive SR and Direct Coupled NSR High Torque NSR NEMA 4 with Hand Wheel NSR 20 PSI Pneumatic SR Copyright 2007 TAC All brand names, trademarks and registered trademarks are the property of their respective owners. Information contained within this document is subject to change without notice. All rights reserved. F TAC 1354 Clifford Avenue P.O. Box 2940 Loves Park, IL